SampleMidterm/Problem01

Problem 1. [10 points] Amdahl’s Law

George P. Burdell is an avid player of the new “Jackets vs. Dawgs” sports simulation game, but is disappointed by the game’s performance on his old laptop and wants to buy a new laptop. He has determined that his old laptop’s processor spends

50% of its time on graphics processing,

30% of its time on physics computations, and

20% of its time on modeling the intelligence of players (mostly for
Jackets)

The new laptop has a processor with

a special processing unit for green, yellow, white, and red pixels,
allowing the processor to process graphics 10 times as fast as on
George’s old laptop

new specialized instructions such as “TCKL”, “KCK”, and “THRW” which
result in physics processing that is 6 times as fast as on George’s
old laptop.

an improved microarchitecture, which makes everything else twice as
fast as it was on George’s old laptop.

What is the overall speedup of the new laptop over the old one when playing this game?